Possible Causes
Malfunction is detected when an excessively low voltage is sent to ECM from EVAP-CSPS. Possible causes are:
- EVAP-CSPS circuit open or shorted.
- Defective EVAP-CSPS.
- EVAP-CSPS hose clogged, kinked, leaking, disconnected or improperly connected.
- Defective EVAP Canister Vent Control Valve (EVAP-CVCV).
- Defective EVAP Canister Purge Volume Control Solenoid Valve (EVAP-CPVCSV).
- Defective EVAP canister.
- Defective hose between EVAP-CVCV and water separator.
NOTE:
Before proceeding, ensure ambient temperature is more than 41°F (5°C).